Valveless rotary pump



T. A. BATEMON.

l VALVELESS ROTARY PUMP.

APPLICATION FILED JULY 22| |920- -1,388,234. I PatentedAug.23,1921

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THOMAS A. BATEMON, 0F LOISl ANGELES, CALIFORNIA.

VALVELESS ROTARY PUMP.

Specification of Letters Patent.

Patented Aug'. v23, 1921.

Application filed .Tuly 22, 1920. Serial No. 398,190.

T o all whom t may concern Be it known that LTHoMAs A. BATEMON, a citizen of the United States, residing in the city and county of Los Angeles and State of California, have invented a new and useful Valveless Rotary Pump, ofwhich the following is a specification..

This invention has relation to an organization of movable elements, in which are employed combined suction and forcing influences capable of pumping water, oil, or air, with a minimum expenditure or mechanical energy.

The objects of the invention are to produce adevice of this character which is inexpensive to construct, has a minimum number of parts, reduced wearing and contact i surfaces, less friction for the moving parts,

and accessibility of parts, whereby worn elements may be readily replaced.

Another object of this invention. is to provide a pump effective for lifting and forcing water, oil, or other fluid, without valves, and which is not liable to clog with grit or sand, when in use.

Another-object of this invention is to provide a pump which, when installed, is always practically primed for starting, and which may be driven iny either direction of rotation.

It is a further design of'the invention to so construct a pump, that the volume of water or other fluid medium delivered thereby, shall be of maximum quantity consistent with the continuous movement of such water or fluid medium.

The invention may be embodied to comprehend a mechanism in which some of the elements operate eccentrically relative to the others and relatively to an inclosin'g structure, to accomplish the transition of water, oil, or other fluid medium therethrough, and to impel the same with force.

Upon the annexed drawings, Figure 1 is a central and longitudinal section of a pump embodying my invention. Fig. 2 is a front elevation of the same, with the front inclosingplate removed. Fig. 3 is a perspective and detail view of an impelling vane. Fig.

4 is a perspective and detail view of a bear-` ing sleeve.

Assuming the lnventlon to be embodied in the form illustrated, the movable elements may be mounted in a casing 5, having suitable induction and eduction ports 6, each adapted to be connected to suction or distributing pipes or conduits as may be preferred, and both ports being positioned above the cylindrical interior 7, whereby, when the pump is at rest, a portion of the water, oil, or fluid medium acted upon, will be entrapped and serve to prime the pump. The casing 5 is secured to a bearing standard 8, projecting from the base 9; the standard 8 having an annular abutment 10, engaging the casing 5, and maintaining-the alinement of the same with the bearing sleeve 11, mounted -in the standard. Another bearing standard 12, is provided with a similar bearing sleeve 13, and these bearing standards are integral with the base, thereby insuring that the bearings for the driving shaft 14, will be always maintained in alinement. This arrangement further provides for replacement of a worn bearing, without di'smounting the pump, or disturbing its connections with the suction and delivery pipes. The driving shaft 14 has mounted thereon an actuator 15, eccentrically disposed within the chamber 7.

The segmental working space 16, formed by the peripheral wall 17, of the actuator, and the inner casing wall 18, serves as a continuous passage way forlthe fluid medium from the induction port to the eduction port, and the passage of the impelling vanes 19 through the working space, serves to create a partial vacuum on one side of the vanes, effective for suction force upon the fluid medium, and compression on the opposite side of the vanes effective for delivery,

of the Huid medium with force.

The front plate 20, forming the front wall of the working chamber 7, is provided with an axial extension 21, having mounted therein, the bearing sleeve 22; a rotatable shaft 23 being journaled in the bearing sleeve 22, and mounted concentric with chamber 7. 'Shaft 23 has fixed thereto, a piston head 24, which rotates concentrically within chamber 7. The piston head has one impeller blade 25, mounted thereon and fixed thereto, and sliding outwardly and inwardly in slot 26, in the actuator 15. Impeller vanes 19, are so mounted in the slots 27, that they have a slight oscillative motion relative to the piston-head 24, allowing angular movement while working outwardly and inwardly in slots 28, in the actuator 15. The revoluble piston head is therefore driven by theI engagement of the fixed impeller vane 25, in engagement with the actuator effective to pump water, oil, and'fluid mediums in maximum quantity with minimum expenditure of power. It has no valves or plungers to be affected by grit, or to pack,

and friction is reduced to a minimum. The' impeller vanes are centrally hung or mounted relative to the working chamber, and therefore balanced, which reduces wear. It will pump water alone, air and water, and air alone, and is noiseless in operation.

It will be observedthat the angular movement of the impelling vanes, insures the contact of the extremities 31, thereof, with the inner wall of the cylindrical casing 5, and an equal and minimum wear of the contact parts. The contact of the peripheral wall of the actuator with the casing is midway between the two ports therein, and by reason of this, the advancement of the vanes through working chamber 7 and the segmental space 16, conjunctively results in the creation of vacuums acting upon and inf'luencing the contents of the eduction pipe,

and exerts a forcing, or impelling influence. within the working space 16, in advance of the vanes. It may be further noted that the actual frictional contact of the working parts is only upon the edges `of the slots in the actuator member.

What is claimed is:

1. A rotary pump comprising a casing inclosing a substantially cylindrlcal chamber, an actuator revolubly mounted therein, and having its axis eccentrically disposed relative to the chamber, `a peripheral fiange on the actuator having a series of transverse slots, and formin with the casing, a segmental working c amber, a shaft journaled in the casing, and projecting within the c lindrical chamber, a plston mounted on said shaft and rotating concentrically within the cylindrical chamber, an impelling blade fixed to the piston and sliding inwardly and outwardly in one of said slots in the actuator, other im elling vanes connected to the piston and sli ing in the remaining actuator slots, said actuator contacting with the casing -at the uppermost point of the chamber,

by the actuator, an axial shaft for the piston, an axial shaft for the actuator, bearing members for said shafts located without, the Working chamber, and means for interposing packing between the bearing members and the working chamber.

3. The combination with a base, bearing standards extending upwardly from the base, and an annular abutment on one of the bearing standards, of a casing engaging with the annular abutment and having eduction and induction ports, a front plate formv ing with the casing a cylindrical chamber, a driving shaft journaled in the bearing standards `and extendinv within the chamber, said shaft being axially eccentric with the chamber, a shaft j ournaled in the front plate and disposed axially concentric with the chamber, a piston fixed to the piston shaft, impelling vanes carried by the piston vand working in the chamber, and an actuator for the impelling vanes mounted on the driving shaft.

4. The combination with a casing inclosing a cylindrical chamber and having an induction and eduction port above the chamber, of a rotary piston operative withinthe chamber and having its axis concentric therewith, an actuator revolubly mounted within the chamber and eccentrically disposed therein to contact with the uppermost part of the chamber between the induction y and eduction ports, and having transverse slots in the periphery thereof, an impelling blade fixed to the piston and sliding in one of said slots in the actuator,'other impelling blades connected to the piston and sliding in the remaining actuatorl slots, said remaining impelling blades being arranged for pivotal movement relative to the piston, rotatable shafts for the piston and actuator and extending from the casing on opposite sides thereof, and bearings for the shafts arranged externally relative to the cylindrical chamber.

Inl testimony whereof, I hereunto affix my signature, this 26th day of June, 1920.

THOMAS A. BATEMON. 

